2774440 has 32 divisors (see below), whose sum is σ = 6300000. Its totient is φ = 1099584.

The previous prime is 2774419. The next prime is 2774477. The reversal of 2774440 is 444772.

It is a junction number, because it is equal to n+sod(n) for n = 2774399 and 2774408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5311 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (196875).

2^2774440 is an apocalyptic number.

2774440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2774440 is an abundant number, since it is smaller than the sum of its proper divisors (3525560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2774440 is a wasteful number, since it uses less digits than its factorization.

2774440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 2774440 is about 1665.6650323519. The cubic root of 2774440 is about 140.5157845009.

The spelling of 2774440 in words is "two million, seven hundred seventy-four thousand, four hundred forty".